Evidence map›Paper›PMID 20138852›Full record

ArticleBrain research2010

Cocoa-enriched diets enhance expression of phosphatases and decrease expression of inflammatory molecules in trigeminal ganglion neurons.

Ryan J Cady, Paul L Durham

Abstract read
In one paragraph

Article in Brain research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.4field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. A Bidirectional View of Migraine and Diet Relationship.Neuropsychiatric disease and treatment · 2021
    Review
  10. Article
  11. Migraine and Diet.Nutrients · 2020
    Review
  12. Review
  13. Review
  14. The effect of natural products in animal models of temporomandibular disorders.Journal of applied oral science : revista FOB · 2020
    Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Ryan J CadyCenter for Biomedical and Life Sciences, Missouri State University, Springfield, MO 65806, USA.
Paul L Durham
Missouri State University · US

Funding

CGRP Regulation of iNOS and MAP Kinases/Phosphatases in Trigeminal Ganglia GliaR01DE017805 · NIDCR · MISSOURI STATE UNIVERSITY · PI DURHAM, PAUL L · 2006 to 2010
$1.2M
NIDCR NIH HHS DE017805NIDCR NIH HHS R01 DE017805
6 · The paper itself

Abstract

Activation of trigeminal nerves and release of neuropeptides that promote inflammation are implicated in the underlying pathology of migraine and temporomandibular joint (TMJ) disorders. The overall response of trigeminal nerves to peripheral inflammatory stimuli involves a balance between enzymes that promote inflammation, kinases, and those that restore homeostasis, phosphatases. The goal of this study was to determine the effects of a cocoa-enriched diet on the expression of key inflammatory proteins in trigeminal ganglion neurons under basal and inflammatory conditions. Rats were fed a control diet or an isocaloric diet enriched in cocoa for 14days prior to an injection of noxious stimuli to cause acute or chronic excitation of trigeminal neurons. In animals fed a cocoa-enriched diet, basal levels of the mitogen-activated kinase (MAP) phosphatases MKP-1 and MKP-3 were elevated in neurons. Importantly, the stimulatory effects of acute or chronic peripheral inflammation on neuronal expression of the MAPK p38 and extracellular signal-regulated kinases (ERK) were significantly repressed in response to cocoa. Similarly, dietary cocoa significantly suppressed basal neuronal expression of calcitonin gene-related peptide (CGRP) as well as stimulated levels of the inducible form of nitric oxide synthase (iNOS), proteins implicated in the underlying pathology of migraine and TMJ disorders. To our knowledge, this is the first evidence that a dietary supplement can cause upregulation of MKP, and that cocoa can prevent inflammatory responses in trigeminal ganglion neurons. Furthermore, our data provide evidence that cocoa contains biologically active compounds that would be beneficial in the treatment of migraine and TMJ disorders.

Indexed as

DietAnimalsCacaoCalcitonin Gene-Related PeptideCell CountImmunohistochemistryInflammationNeuronsNitric Oxide Synthase Type IIPhosphoric Monoester HydrolasesRatsRats, Sprague-DawleyStatistics, NonparametricTrigeminal GanglionCalcitonin Gene-Related PeptideNitric Oxide Synthase Type IIPhosphoric Monoester Hydrolases

Identifiers

PMID20138852
PMCPMC2897905
OpenAlexW2063842631

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.